v0.4.0 v0.4.1

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VectifyAI/PageIndexOct 12, 2026 → Oct 16, 20264 days between releases

What's New

Flash engine gains optional LLM node summaries for flexible indexing.

New Features

  • LiteLLM-routed providers for flexible model connections.
  • Explicit `PageIndexLocalClient` and `PageIndexCloudClient` constructors.
  • MCP tool contract support with specific config bundles.
  • Native support for multiple streaming protocols (Responses/Messages).

Improvements

  • Flash engine now allows optional LLM node summaries alongside layout stats.
  • Enhanced model and connection knobs for better configuration control.
  • Unified API now explicitly separates local and cloud client constructors.

Upgrade Notes

The unified client API remains unchanged, though explicit constructors for `PageIndexLocalClient` and `PageIndexCloudClient` are now available. Configuration options have expanded to include `index_model`, `chat_model`, and LiteLLM-routed providers. No breaking changes to the core interface are expected.

The Two Releases

v0.4.0

v0.4.0

Oct 12, 2026· 9 days ago

PageIndex v0.4.0 introduces the Flash engine to drastically reduce indexing costs and time by using layout stats instead of LLMs for tree generation. The SDK now provides a unified client interface for both local and cloud operations, supports custom chat models for cloud documents, and includes comprehensive agent integration tools.

Full release notes
v0.4.1

v0.4.1

Oct 16, 2026· 6 days ago

This release introduces the Flash engine for faster and cheaper indexing by using layout statistics instead of LLMs for structure generation. It provides a unified client interface that works seamlessly in both local and cloud modes, with no server, vector DB, or API key required for local use.

Full release notes